Calibration Device and Method for Frequency Point in Touch Screen, Touch Screen and Display Device

    公开(公告)号:US20210072851A1

    公开(公告)日:2021-03-11

    申请号:US16062953

    申请日:2017-09-29

    Abstract: The calibration device is used for automatically calibrating capacitances of a sensing capacitor at various frequency points in the touch screen, and comprising a calibration circuit and a comparison circuit. The calibration circuit is connected with the sensing capacitor and the comparison circuit to transmit a calibration excitation signal to the touch screen to start calibration operations at the various frequency points, and calibrate the sensing capacitor in the touch screen according to a comparison result from the comparison circuit; the comparison circuit is used for comparing a preset capacitance with the capacitance of the sensing capacitor at a current frequency point in the touch screen to obtain the comparison result, and feeding the comparison result back to the calibration circuit, and the calibration circuit calibrates the capacitance of the sensing capacitor to a capacitance that matches with the current frequency point.

    Organic light-emitting diode device, manufacturing method thereof, and display device

    公开(公告)号:US10930893B2

    公开(公告)日:2021-02-23

    申请号:US15751703

    申请日:2017-08-15

    Abstract: The present disclosure discloses an organic light-emitting diode device, a manufacturing method thereof and a display device. The organic light-emitting diode device comprises: a substrate (100); an organic light-emitting diode layer (200) on a side of the substrate (100); and a barrier layer (510) configured to block ultraviolet rays from entering the organic light-emitting diode layer, wherein the barrier layer is on a side of the organic light-emitting diode layer away from the substrate or on a side of the organic light-emitting diode layer close to the substrate. The organic light-emitting diode device can solve the technical problem of short service life due to the influence of ultraviolet rays in the sunlight.

    Mask carrier and evaporation system

    公开(公告)号:US10927444B2

    公开(公告)日:2021-02-23

    申请号:US16113065

    申请日:2018-08-27

    Inventor: Shouhua Lv

    Abstract: A mask carrier and an evaporation system are provided. The mask carrier includes a base and at least two correction fixtures. The at least two correction fixtures are configured to clamp, on the base, a framework of a metal mask which is used for evaporation on the base, the base has a first opening through which organic material passes, and the at least two correction fixtures are around the first opening in a spaced manner. During organic evaporation coating, the at least two correction fixtures on the mask carrier press the framework of the metal mask to prevent the framework from deformation. Thus, a clearance between a substrate and the metal mask is reduced or even eliminated after the substrate is in press-fit with surface of the metal mask. Patterns obtained through evaporation are clear in shape and outline and normal in size. Hence, the product yield is increased.

    Pixel compensation circuit, compensation method, and display device

    公开(公告)号:US10916188B2

    公开(公告)日:2021-02-09

    申请号:US16336957

    申请日:2018-05-24

    Inventor: Long Han

    Abstract: The present disclosure relates to the field of display technologies, and more particularly, to a pixel circuit. The pixel circuit includes a drive transistor and an OLED light-emitting element. A first switching element transmits an initialization signal to the drive transistor in response to a reset signal. A second switching element transmits a data signal to the drive transistor in response to a scanning signal. A third switching element transmits the data signal to a coupling capacitor in response to the scanning signal. A fourth switching element is connected to the drive transistor in response to the scanning signal. A fifth switching element transmits a first power signal to the first terminal of the drive transistor in response to a control signal. A sixth switching element transmits, in response to the control signal, an output current of the drive transistor to the OLED light-emitting element.

    ARRAY SUBSTRATE, LIQUID CRYSTAL DISPLAY PANEL AND DISPLAY DEVICE

    公开(公告)号:US20210026179A1

    公开(公告)日:2021-01-28

    申请号:US16328562

    申请日:2018-05-23

    Abstract: Disclosed are an array substrate, a liquid crystal display panel and a display apparatus. The array substrate comprises a plurality of pixel units, with each of which being provided with a plurality of sub-pixels (R, G, B) arranged in a first direction; a plurality of touch control electrodes, a region where each of the touch control electrodes is located overlapping with a region where the plurality of sub-pixels (R, G, B) are located; and a plurality of touch control signal lines arranged in gaps between the sub-pixels (R, G, B), wherein each of the touch control signal lines is connected to each of the touch control electrodes, there is no touch control floating signal line not connected to each of the touch control electrodes, and one column of pixel units is correspondingly provided with one touch control signal line.

    Pixel arrangement structure, organic light emitting device, display device and mask

    公开(公告)号:US10901314B2

    公开(公告)日:2021-01-26

    申请号:US15744944

    申请日:2017-06-27

    Inventor: Fengli Ji

    Abstract: A pixel arrangement structure includes a plurality of pixel groups that are periodically arranged. Each pixel group includes four pixels, a first pixel and a second pixel are arranged in a same row, a third pixel and a fourth pixel are arranged in adjacent another row, the first pixel and the third pixel are arranged in a same column, and the second pixel and the fourth pixel are arranged in adjacent another column. An arrangement of sub-pixels in the first pixel is different from an arrangement of sub-pixels in the second pixel, an arrangement of sub-pixels in the third pixel is same as the arrangement of the sub-pixels in the second pixel, and an arrangement of sub-pixels in the fourth pixel is same as the arrangement of the sub-pixels in the first pixel. An organic light emitting device, a display device and a mask are also provided.

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